Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach hoi le snippets" » "cach thoi le snippets", "cach noi le snippets", "cach hoc le snippets", "cach hoi ve snippets", "cach hai le snippets", "cach hoi e snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cach hoi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach hoi le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach hoi le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach hoi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.